Have you ever wished that the experts were sitting next to you or standing by your side during surgery? "Essentials of Cataract Surgery" is a straightforward, concise, and easy to read reference manual that is equivalent to having the best instructor guiding you on what to do next and how to avoid potential complications.
More than 60 new puzzles and stunts based on the properties of numbers. Easy techniques for multiplying large numbers mentally, identifying unknown numbers, determining the date of any day in any year, interest rates worked in one’s head; such entertainments as The Lost Digit, and Psychic Bridge; over 30 pages of magic squares, triangles, cubes, much more. Inexhaustible source of stimulating mathematical recreation. 76 illustrations.
Caliban's Problem Book: Mathematical, Inferential and Cryptographic Puzzles
A small chapter is devoted to logic puzzles and the solutions are included. The authors were two of the leading figures in recreational mathematics in the sixties. Joseph Madachy was the founder of Recreational Mathematics Magazine and the editor of Journal of Recreational Mathematics for nearly thirty years
Many of the topics that are commonly placed in the area of recreational mathematics have occupied their niches for many years. Therefore, although the bulk of the material in this book was written almost four decades ago, it is largely still topical. The primary areas that are not are where the computer has increased our capability. At the time it was written, the four-color theorem was not yet proven and the largest known prime was but a shadow of what it is now.
